Force increment
from 21st century economic report
Adoption
computing power: in short, it is a quantitative indicator of the computing speed of your mining machine. For example, 1t computing power is the 12th power of 10 in 1s. If the 12th power of this 10 can work out the results that meet the conditions, it will be g. If not, it can be said that it is in vain
in the face of the exponential increase of data, computing power is the biggest demand for enterprises and institutions, and improving computing power requires higher performance CPU and GPU
last time, AMD processor pushed the computing power of HPC to billion times, but now AMD with epyc processor pushes the computing power of supercomputing to 10 billion times again. AMD's two E-class supercomputer systems, frontier and El Capitan, are scheled to be delivered in 2021 and 2023, respectively. They will achieve the expected processing performance of more than 150 exaflops (10 billion times) and 2 exaflops, respectively, and are expected to become the fastest supercomputer in the world
it is a big challenge for any manufacturer to improve the computing power in a short time. How did amd make such great progress? Let's start in 2017
in 2017, amd adopted a new Zen architecture, launched the first generation epyc processor, and dramatically increased the number of single processor cores to 32 cores. Two years later, the introction of the second generation epyc processor not only upgraded the architecture to zen2, but also reced the process technology from 14nm to 7Nm, which improved the IPC performance by 15%
compared with the Zen architecture, the new zen2 architecture optimizes the L1 instruction cache, doubles the operation cache capacity and floating point unit data bit width, and doubles the L3 cache to 16MB. The 64 core epyc processor easily has 128MB L3 cache. What's more, the second generation epyc adopts 7Nm process, which effectively reces the power consumption. Under 225W TDP, the number of cores can be increased to 64 cores, which makes its performance significantly improved
in the past year, the second generation of AMD epyc processor has achieved more than 140 world records, covering cloud computing, virtualization, high-performance computing, big data analysis and other fields, and also with strong performance to meet the increasing demand of enterprises or institutions for computing power
therefore, relying on the leading performance of epyc processor and ultra-high power consumption ratio, amd has not only won more market share and broken many world records, but also expanded its ecosystem.
= (9.8 × zero point two × 6350) J
= 1.24j students, you give the question this answer is completely correct, a few digits after the decimal point is not much, it's good to calculate completely, students are just learning physics, it's common to have four or five digits after seven or eight decimal points to multiply and divide...... If the title tells you how much to keep, you can rece it after you finish it. Generally, the numbers that are not too exaggerated will not be reced and calculated at the beginning. (for example, 0.1234 * 0.123456, the result retains 2 significant digits. You can simplify the multiplier first and then calculate it. However, such bloody questions will not be found in high school ~ ~)
so, You ask how to pass the calculation pass, that is what our physics teacher said to us: "there is no problem in the world, as long as you are willing to work hard."
it's normal for high school physics numbers to be so exaggerated, especially after you learn gravitation... Well, it's disgusting to think about it... And when we review... Well... So I can only comfort you. As a science student, please forgive me
well, after reading your supplement, did you say the experiment was correct? The calculation of the experimental problem is indeed more demanding, because it is necessary to deal with the data extraction (N kinds of methods for calculating the average value and the effective value must be correctly selected), and then calculate by the formula after the processing is completed... It's very brain burning... You tell the data directly here, so you can calculate it directly ~
ha ha ha ~ I can say what I think, So answer may be a bit scattered, if you have any questions can find me ~ I will take the college entrance examination this year, ll want to bless me!! Hee hee
In other words, Huawei MDC intelligent driving platform can support the smooth evolution and upgrading of L2 + ~ L4 automatic driving algorithm with a set of software architecture and different hardware configurations for different levels of automatic driving algorithm
Xu Zhijun said that Huawei's biggest advantage is the ability of AI and cloud. Based on shengteng chip + intelligent operating system, Huawei builds MDC intelligent driving platform. Through opening API (, application program interface), Huawei hopes to build three ecologies together with the majority of parts suppliers, integrators, application developers and other partners - sensor ecology, sensor ecology and application ecology The ecology of intelligent driving application and executive parts will eventually promote the whole automobile instry to intelligent driving, which is what Huawei said“ The strategy of "platform + ecology" enables intelligent driving to enter the fast lane
one is the sensor ecology, including lidar, millimeter wave radar, camera and so on, which makes these sensors easily connected with MDC. Xu Zhijun said that the MDC intelligent driving platform must build an ecology, because it is the brain, and all the things of sensors should be connected and understood each other
of course, as one of the options, Huawei will also use its own 5g technology to develop millimeter wave radar and realize all-weather imaging. At the same time, we will also make full use of the world's leading optoelectronic technology to develop lidar and truly solve the cost and performance problems faced by lidar
at present, ABCD (Autoliv, Bosch, Continental, Delphi) field control has been formed in the global millimeter wave radar field. However, even the 77g millimeter wave radar with the highest frequency is still too low in resolution to accurately model pedestrians and obstacles. In terms of sensor fusion and synchronization, AI algorithm processing, etc, The raw data of millimeter wave radar is not friendly enough. The high cost of lidar also makes many players miserable. If Huawei has a breakthrough in these two aspects, it can be said to be a major breakthrough in the sensor field of intelligent driving
The second is the application ecology of intelligent driving. Huawei's MDC intelligent driving platform includes hardware platform (self-developed CPU / AI chip) and self-developed vehicle control operating system. Huawei's automatic driving operating system is an open system, just like Android of smart phones or similar to Hongmeng. It should support all car companies, Tier1 and application developers to develop various intelligent driving algorithms and applications based on this operating system, and support the automobile instry to continuously provide innovative functions and services of intelligent driving The third is the executive part ecology. The most important part of intelligent driving is command, which is a brain. It needs to command how to move the final executive parts. There should also be interfaces to connect the electric drive, electric and other executive parts of any manufacturer“ We make the interface standard good, so that MDC can easily cooperate with all executive parts. " However, Huawei still faces a series of problems and challenges in laws, regulations, policies and standards, Xu Zhijun said. It is necessary to establish an extensive ecological alliance and gather consensus to promote the establishment of standardsso, how much weight does Huawei's MDC intelligent driving platform take in the whole process of auto driving? How far can it push the process of automatic driving
Xu Zhijun answered the question of auto business review like this: "why is it called intelligent driving instead of automatic driving? Fully automatic driving and unmanned driving are the ultimate pursuit. Autonomous driving is a graal process, the ultimate goal is to achieve complete unmanned driving, but in the process of moving towards this ultimate goal, it can create value. Tesla has created value for everyone. "
for example, Tesla has made several intelligent driving functions, which consumers like very much. He pointed out that in the case of road traffic in China, everyone would like three functions, namely, automatic parking function, self parking function and car following function in the case of traffic congestion
at present, Huawei has provided the development version of MDC intelligent driving platform to its partners, who will make intelligent driving applications on this platform
intelligent full scene travel experience
intelligent cockpit is also a very fashionable topic in the automotive instry in recent two years, but it is not easy to really do well or even talk well, because it is also an evolving automotive future
nowadays, the screen in the car is getting bigger and bigger, which seems to be a sign of the intelligent cockpit. However, it is obvious that the ecology carried by most cars is not much different from that of traditional cars. What do we expect from Huawei CDC intelligent cockpit
the automotive business review holds that the intelligent cockpit is a complete system composed of different cockpit electronics. It is not simply based on LCD instrument, HUD, central control screen and on-board information terminal of central control, rear seat HMI entertainment screen, interior and exterior rear-view mirrors, etc., but integrates artificial intelligence, AR, ADAS, VR and other technologies into the future cockpit layout to improve the user's car experience, Give it services that traditional cars don't have
the intelligent cockpit instry chain, based on the central control platform, graally extends to the LCD instrument, head up display and rear seat entertainment, realizing multi-level information processing operation and unique human vehicle interaction
vehicle information and entertainment system (IVI) is an important carrier of intelligent cockpit information interaction. IVI can realize a series of applications, including three-dimensional navigation, real-time road condition, IPTV, auxiliary driving, fault detection, vehicle information, body control, mobile office, wireless communication, online entertainment function and TSP service, which greatly improves the vehicle's electronic and intelligent performance The level of network and intelligence
the cockpit upgrade path can be compared with smart phones. Compared with ADAS, cockpit electronic procts are more diversified, the global competition pattern is more dispersed, and everything is still evolving, and there is no real oligarch
back to Huawei's CDC intelligent cockpit platform. CDC is cockpit domain controller. It can realize the seamless sharing of smart car and smart phone in the whole instrial chain of hardware, software and application ecology, and establish a data center based on car scene
there are three kinds of sharing: first, build IVI mole on Kirin chip of smart phone to give play to the scale effect of instrial chain collaboration and rece hardware cost; Second, based on Hongmeng OS, share Huawei's "1 + 8" ecology, and realize cross terminal non inctive interconnection; Third, enjoy the rich app ecology of smart phones, improve the car experience, open API, and enable cross terminal partners to develop intelligent cockpit applications
among them, compared with the traditional multi chip scheme, the single chip scheme drives the intelligent cockpit, which is similar to the cockpit domain controller scheme. It can simplify the layout of cockpit processor, greatly rece the system cost, and provide a full range of intelligent interconnection experience such as multi screen interaction
intelligent cockpit with one core and multiple screens has become a trend. For example, on August 7, 2018, anbofu announced that it will provide a single-chip intelligent cockpit solution for the new generation of haver and wey brands of Great Wall Motors, which can drive all functions of vehicle electronic systems such as full-color LCD instrument, head up display and central control entertainment at the same time. For another example, at the beginning of 2019, Huayang Group launched a new generation of vehicle specification chip i.mx8 and the latest on-board operating system androidp infotainment solution
at the same time, in the aspect of intelligent cockpit, vehicle hardware is developing towards molarization, and the proportion of software system is increasing. Some automobile manufacturers begin to molarize IVI, which can rece the complexity of different vehicle configurations and increase the reuse rate of single proct moles
However, Huawei's CDC intelligent cockpit platform looks better. According to Xu Zhijun, it is to bring the hardware ecology, software ecology and application ecology accumulated by Huawei's intelligent terminals into the intelligent cockpit. In addition to providing entertainment services, there will be more passenger services and safety services after the realization of automatic driving in the futurehe said: "we have a large number of smart phone users in China and around the world, and the entire instry has established a wide range of intelligent terminal ecology, which has truly realized scale and low cost. The intelligent cockpit is in the car. Our biggest advantage is that the intelligent terminal and the intelligent cockpit platform share an ecology. "
Xu Zhijun said that when Huawei communicates with car companies about the idea of CDC intelligent cockpit, we most welcome to move the ecology of Huawei intelligent terminal to the car and share the ecology of smart phone. At the same time, the development of API enables the development of intelligent cockpit applications across terminal partners
for example, not only the entire entertainment system, but also the AR display of the instrument panel in the future, as well as judging whether the driver is sleeping or distracted before automatic driving, that is, the driver monitoring system (DMS), can be solved through the intelligent cockpit platform
Huawei hopes to enable digital cockpit and build intelligent full scene travel experience through chip + OS + ecology. These experiences include intelligent driving, Infotainment / car home interaction, life cycle service, Zhizhen office and home theater. It provides intelligent service engine including cockpit perception, decision-making and control, multimodal real-time interaction, people car home insensible interconnection and service search
as for the ecology of intelligent cockpit built by Huawei, the hardware can be replaced, the application can be updated continuously, and the software can be upgraded continuously. Independent account system, cloud service and vehicle OTA capability have become the trend of intelligent cockpit
this article comes from the author of car home, which does not represent the standpoint of car home
